Chams Nadir Books

The astrolabe of the sea

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The Astrolabe of the Sea - a work of lyric beauty, originality, and universal outlook - is part ancient fable, part contemporary ironic narrative. A mysterious astrolabe that unfolds " the fabric...

L'Athanor est le chaudron dans lequel l'Alchimiste plonge ses matériaux et dans un incessant mouvement giratoire, les touille pour faire entrechoquer, dans le firmament sombre des flancs du récipie...

Les portiques de la mer

By Chams Nadir

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Astrolabe de la mer

By Chams Nadir

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.